Start profiling immediately: on (if you're experiencing performance problems on Visual Studio startup or during solution loading) or off otherwise

Press 'Run'

If there's a performance problem during startup

Wait while Visual Studio starts, open your solution

Wait until the solution is loaded and ReSharper finishes loading caches

Press 'Get Snapshot' button on the 'Control Profiling' window

Otherwise

Wait while Visual Studio starts, open your solution

Press 'Start Profiling' button on the 'Control Profiling' window

Perform actions which are slow with ReSharper (typing, switching between documents, building etc)

Press 'Get Snapshot' button on the 'Control Profiling' window

Save the resulting snapshot

Compress the resulting snapshot using Zip

Upload the snapshot to ftp://ftp.intellij.net/.uploads/. If upon uploading you're unable to see the snapshot in the remote folder, this is normal: this is the way privileges are set up for the FTP folder.

Create a new issue in ReSharper issue tracker. In the issue, provide a short description of the performance problems you're experiencing, and specify the name of your snapshot.